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Vaselesa [24]
3 years ago
13

Find the domain of the function f(x) = 7x2 + 8x - 15.

Mathematics
1 answer:
amm18123 years ago
5 0

Answer:

Domain is all real numbers or (negative infinity, positive infinity)

Step-by-step explanation:

Domain is all values of <em>x</em> (inputs) that will work with the function. Since a parabola has no limits for <em>x</em>, and all numbers work for <em>x</em>, then the domain can be any number. That leaves us with All Real Numbers as our answer.

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Step-by-step explanation: 1) an=4n+1

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          a4=4×4+1=17

           a5=4×5+1=21

2) clearly a1=8 and then the terms of series are decreasing by 2

so, an=an-1 -2

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3 years ago
Complete the equation of the line through (4,-8)(4,−8)left parenthesis, 4, comma, minu
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Equation of a line is in the form y = mx+c, where m is the gradient and c is the y-intercept.

First step is to find the gradient.

m = (y2-y1)/(x2-x1)
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